Results 41 to 50 of about 1,878 (194)
Carboxylic ionophores, such as monensin, salinomycin and lasalocid, are polyether antibiotics used widely in production animals for the control of coccidiosis, as well as for the promotion of growth and feed efficiency.
Danielle Henn +3 more
doaj +1 more source
Four isomeric homologs of lasalocid A have been isolated from cultures of Streptomyces lasaliensis. The homologs each arise by replacement of one of the four propionate derived methyls in lasalocid A by an ethyl group, which results in each homolog molecule containing four C-ethyls.
J W, Westley +6 more
openaire +3 more sources
Following a request from the European Commission, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of Avatec® 150G (lasalocid A sodium) for chickens for ...
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) +21 more
doaj +1 more source
Lasalocid or Rumensin to prevent lactic acidosis in cattle [PDF]
Lasalocid or Rumensin (monensin) protected cattle gorged with grain from lactic acidosis. Both lasalocid and monensin prevented the decrease in rumen and blood pH and increase in rumen and blood lactic acid (0(-) isomer) usually associated with lactic
Bartley, E.E. +9 more
core +1 more source
The biosynthesis of lasalocid A (formerly antibiotic X-537 A) in cultures of Strepto-myces lasaliensis has been studied using 13C- and 14C-labelled precursors. The antibiotic is derived from five acetate, four propionate and three butyrate units. This study has provided the first illustration of an ethyl group arising from butyrate and 2-ethylmalonate.
J. W. WESTLEY +6 more
openaire +2 more sources
Scientific Opinion on the safety and efficacy of Avatec® 150G (lasalocid A sodium) for turkeys
Avatec® 150G is an anticoccidial feed additive containing 15 % lasalocid A sodium, a polyether ionophore produced by fermentation of Streptomyces lasaliensis.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)
doaj +1 more source
Influence of Ionophore Supplementation on Growth Performance, Dietary Energetics and Carcass Characteristics in Finishing Cattle during Period of Heat Stress [PDF]
Forty-eight crossbred heifers (378.1±18 kg) were used in a 56-d feeding trial (four pens per treatment in a randomised complete block design) to evaluate the influence of ionophore supplementation on growth performance, dietary energetics and carcass ...
A. Barreras +9 more
doaj +1 more source
Foi avaliado o desenvolvimento corporal de bezerras de corte em pastagem de azevém (Lolium multiflorum Lam.), recebendo diferentes alternativas de suplementação mineral, associadas ou não à adição de ionóforo.
Luciana Pötter +7 more
doaj +1 more source
Ruminal degradation of dietary protein in steers fed lasalocid [PDF]
A trial was conducted to investigate the effect of lasalocid (Bovatec®) on ruminal degradation of dietary protein in Holstein steers. Five ruminally and duodenally cannulated steers (305 kg) were fed a corn-alfalfasoybean meal diet (17% CP), with or
Jean G. St. +6 more
core +1 more source
Avatec®150G is a coccidiostat containing 15 % of the active substance lasalocid A sodium. Avatec®150G is proposed as a coccidiostat for pheasants, partridges, quails and guinea fowl at a dose range of 75–120 mg lasalocid sodium/kg complete feed. Based on
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)
doaj +1 more source

